FB2026_01 , released March 12, 2026
FB2026_01 , released March 12, 2026
Recombinant Construct: P{Gr5a-LexA-VP16}
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General Information
Symbol
P{Gr5a-LexA-VP16}
FlyBase ID
FBtp0070030
Feature type
transgenic_transposable_element
Component Allele(s)
Also Known As
Gr5a-LexA, Gr5a-LexA::VP16
Size
Expression Data
Associated insertion(s)
Molecular map
Description and Uses
Construct components
Component allele Ecol\lexAVP16.Gr5a.cGa
Transgenic product class
Component
Use(s)
Regulatory region(s)
Description

The Gr5a promoter controls expression of a lexA::VP16 driver.

Sequence Data
Sequence (FB)
Associated Sequence Data
DNA Sequence
Extent
Segments and Size
Total Size
Left end
Right end
 
Segments
Num
Orientation
Symbol
Reference
Phenotypic Data
Expression Data
Reporter Expression
distribution deduced from reporter (Gal4 UAS)
Stage
Tissue/Position (including subcellular localization)
Reference
Additional Information
Statement
Reference

Drives expression in sugar-sensing neurons of the labellar taste bristles and of the prothoracic leg taste bristles.

EcollexAVP16.Gr5a.cGa drives expression in all sweet taste receptor neurons in the labellar taste hairs, and in about 9 segmental tarsal sugar-sensing chemosensory neurons in the prothoracic leg that project to the prothoracic ganglion.

The dendrites of the EcollexAGr5a.T:HsimVP16 sugar-sensitive neurons of gustatory sensilla and the ScerGAL4E49 labelled motor neurons are in close proximity. However, GFP reconstitution across synaptic partners (GRASP) did not reveal any contacts between them.

 
Marker for
Reporter construct used in assay
Progenitors and Descendants
progenitor(s)
descendant(s)
Comments
Stocks (3)
External Crossreferences and Linkouts ( 0 )
Synonyms and Secondary IDs (7)
References (24)